دورية أكاديمية
أعرض في EDS

Quantifying source contributions of volatile organic compounds under hydraulic fracking moratorium.

التفاصيل البيبلوغرافية
العنوان: Quantifying source contributions of volatile organic compounds under hydraulic fracking moratorium.
المؤلفون: Li HZ; Oak Ridge Institute for Science and Education, National Energy Technology Laboratory, Pittsburgh, PA 15236, USA. Electronic address: Zhongju.Li@netl.doe.gov., Reeder MD; Leidos, National Energy Technology Laboratory, Pittsburgh, PA 15236, USA., Pekney NJ; U.S. Department of Energy, National Energy Technology Laboratory, Pittsburgh, PA 15236, USA.
المصدر: The Science of the total environment [Sci Total Environ] 2020 Aug 25; Vol. 732, pp. 139322. Date of Electronic Publication: 2020 May 11.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0330500 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1026 (Electronic) Linking ISSN: 00489697 NLM ISO Abbreviation: Sci Total Environ Subsets: PubMed not MEDLINE; MEDLINE
أسماء مطبوعة: Original Publication: Amsterdam, Elsevier.
مستخلص: Volatile organic compounds (VOCs) are precursors for ozone (O 3 ) and secondary particulate matter, which contribute to asthma and cardiovascular diseases. With the technology development of hydraulic fracking, the United States experienced a shale gas boom in the last decade while the public raised concerns about the potential health impacts of co-emitted VOCs and other airborne pollutants. National Energy Technology Laboratory conducted stationary trailer-based ambient monitoring to study the sources of VOCs in Maryland, where the state enacted a moratorium on unconventional natural gas extraction. The campaign had two periods, May to August 2014 (summer) and November 2014 to February 2015 (winter). Ethane was the most abundant VOC, averaging 12.3 ppb (SD = 15.7 ppb) in summer and 21.7 ppb (SD = 21.6 ppb) in winter. The seasonal variation of VOCs indicated different source strengths. The sampling region was in the nitrogen oxides (NO x ) limited regime for O 3 production, and the O 3 concentrations were sensitive to VOC/NO x ratios in the early mornings. We derived a six-factor profile using positive matrix factorization: motor vehicles, industrial, biogenics, coal burning, fugitive and evaporative, and ozone secondary. The fugitive and evaporative factor explained 44.5% of total VOCs, and the motor vehicles factor followed second with 15.5%. Oil and gas activities had a considerable impact on the abundance of VOCs in this region.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2020 Elsevier B.V. All rights reserved.)
فهرسة مساهمة: Keywords: Ambient monitoring; Natural gas; Ozone; Source apportionment; Volatile organic compounds
تواريخ الأحداث: Date Created: 20200522 Date Completed: 20200612 Latest Revision: 20200612
رمز التحديث: 20231215
DOI: 10.1016/j.scitotenv.2020.139322
PMID: 32438153
قاعدة البيانات: MEDLINE
الوصف
تدمد:1879-1026
DOI:10.1016/j.scitotenv.2020.139322